Found and started printing this brilliant Machine Vise from https://www.thingiverse.com/TheGoofy . Then looked at remixes and liked the knurled handle from johann517 and the electric drive socket from philxing so I combined them. I also increased the central gear in XandY to avoid gear skipping.
Printed in ABS but would recommend PETG with 4 shells and high infill as most stresses on the shaft of the handle are aligned with the layers.
Update 10/09/2017: Added a downsized ElectricDriveGear02.stl file for a looser fit.
Mark sure layers bond well.